Results 71 to 80 of about 692,897 (364)

A Design of Compact Wideband Siw Fractal Koch Surface Slotted Array Antenna for Ka- Band Applications

, 2023
Gopi Ram, Elagandula Aparna, G. Arun Kumar   +2 more
openalex   +1 more source

Improved Bandwidth of Microstrip Wide-Slot Antenna Using Gielis Curves

IEEE Access
The development of a broadband printed wide-slot antenna based on Gielis curves is presented in this article. The printed wide-slot antenna can be conveniently reshaped to achieve ultra-wideband performance by using superformula.
Davood Zarifi, Ali Farahbakhsh, Michal Mrozowski   +2 more
doaj   +1 more source

A Novel Concentric Annular-Ring Slot Dual-Band Circularly Polarized Microstrip Antenna

International Journal of Antennas and Propagation, 2018
A simple structure concentric annular-ring slot dual-band circularly polarized (CP) microstrip antenna operating at ISM band (2.45 GHz) and 5G band (3.5 GHz) is proposed in this paper.
Yong Cheng, Hui Liu
doaj   +1 more source

Engineering of Double Absorber Organic‐Perovskite Solar Cells for >34% Efficiency with V2O5 as Back Surface Field Layer

Advanced Photonics Research, EarlyView.
This study investigates high‐efficiency double perovskite active layer (DPAL) structures using MAPbI3 and MASnI3 to surpass the Shockley‐Queisser limit in single‐junction perovskite solar cells. SCAPS‐1D simulations show that the V2O5‐assisted DPAL device achieves 34.14% power conversion efficiency with improved JSC, VOC, and FF.
Afifa Lubaba, Mohammed M. Fadhali, Md. Faruk Hossain, Md. Harun‐Or‐ Rashid, Nacer Badi, Aijaz Rasool Chaudhry, Ahmad Irfan, Md. Ferdous Rahman   +7 more
wiley   +1 more source

60 GHz Milimeter-Wave Antennas for Point-to-Point 5G Communication System

MATEC Web of Conferences, 2017
In this paper microstrip patch antenna for millimeter-wave is proposed. Evolution of shape microstrip antenna are designed which is from rectangular antenna to triangle antenna and changed to triangle with slot.
Aishah A.S., Beson Mohd Rashidi Che, Azemi S.N., Junid S.A.Al   +3 more
doaj   +1 more source

Low‐Strain Flexible Ink‐Based Sensors Enable Hyperelastic Inflation Perception Via Geometric Patterning for Balloon‐Type Robots

Advanced Robotics Research, EarlyView.
Integrating proprioceptive capabilities in balloon‐type robots enhances safe human–machine interactions. Traditional pressure estimates are inadequate due to nonlinear relationships. Instead, embedding stretchable sensors effectively measures deformation. This design optimizes sensor geometry to minimize damage risks.
Wenchao Yue, Shuoyuan Chen, Yan Ke, Yingyi Wen, Ruijie Tang, Guohua Hu, Hongliang Ren   +6 more
wiley   +1 more source

A Novel Circularly Polarized Radial-Line Slot Array Antenna with Beam-Steering Solution

, 2022
Shaofeng Bi, Yunfei Sun, Xiaoyu Cheng, Qiang Zhang, Chengwei Yuan   +4 more
openalex   +1 more source

Coplanar waveguide-fed ultra-wideband planar antenna with WLAN-band rejection

Journal of Microwaves, Optoelectronics and Electromagnetic Applications
A compact coplanar waveguide (CPW)-fed ultra-wideband (UWB) antenna is proposed with band-notched characteristic. The antenna has compact size of 29 x 31 mm². A novel wide polygon-slot is inserted on the antenna to obtain good impedance matching and wide
A. Subbarao, S. Raghavan
doaj   +1 more source

Unilateral Ankle‐Foot Exoneuromusculoskeleton with Balance‐Sensing Feedback for Self‐Help Telerehabilitation after Stroke

Advanced Robotics Research, EarlyView.
This study introduces a hybrid robot that integrates mechanical assistance by musculoskeletons (i.e., soft pneumatic muscle with rigid exoskeletal extensions), neuromuscular electrical stimulation, and vibrotactile feedback in a lightweight wearable mechatronic complex applicable to the paretic ankle–foot poststroke for gait restoration. The system can
Fuqiang Ye, Wei Rong, Waiming Li, Kwok‐Ting Wong, Man‐Kit Pang, Hon‐Wah Wai, Lilly Li, Zicong Hong, Song Guo, Zong‐Hao Ma, Yongping Zheng, Ming Zhang, Nicholas Chow, Jianing Zhang, Xiaoling Hu, Fei Chen, Waisang Poon   +16 more
wiley   +1 more source

UTact: Underwater Vision‐Based Tactile Sensor with Geometry Reconstruction and Contact Force Estimation

Advanced Robotics Research, EarlyView.
Embedded flexible sensing technologies advance underwater soft robotics, yet most systems still suffer from hysteresis and limited perceptiveness. Instead, vision‐based tactile sensors provide reliable and rapid feedback essential for complex underwater tasks.
Qiyi Zhang, Zonghao Zuo, Haoxuan Wang, Bin Liu, Yilidusi Yilihamu, Li Wen   +5 more
wiley   +1 more source